Mechanism for binding sheet packs



April 1, 1958 BERBERICH 2,828,779

MECHANISM FOR BINDING- SHEET PACKS Filed May 8, 1953 4 Sheets-Sheet l h t\ g x "a Q V N. w 5

N V i I a r m 6 r IWQew Zol- WL Z24 Bel-Eklclp 1958 w. BERBERICH 2,828,779

' MECHANISM FOR BINDING SHEET PACKS Filed May 8, 1955 4 Sheets-Sheet 2 By I 3 72mm Abril 1958 w. BERBERICH 2,828,779

MECHANISM FOR BINDINGSHEET PACKS Filed May 8, 1953 4 Sheets-Sheet 5 April 1, 1958 w. BERBERICH MECHANISM FOR BINDINGSHEET PACKS 4 Sheets-Sheet 4 Filed May 8, 1955 INVENTOR. W 'ZZL Bel-en'ck Y Mfi 77% AZZ United States Patent MECHANISM FOR BINDING SHEET PACKS Willi Berberich, Heilhronn (N eckar), Wurttemberg, Germany Application May 8, 1953, Serial No. 353,806

Claims priority, application Germany May 9, 1952 6 Claims. (Cl. 14092.7)

This invention relates to a mechanism for binding piles of sheets by winding a wire helix into the sheet pile provided with holes extending parallel to the back of the pile. The mechanism disclosed in this application relates to a wire inserting machine for perforated sheets of the type disclosed in my co-pending application Serial No. 241,995

filed August 15, 1951, now Patent No. 2,730,142, issued January 10, 1956.

It is therefore an object of the present invention to provide means to prevent any waste of wire by providing means on a lever on which the wire helix feed roller is mounted so that it is held in the feed position and after the feed has been completed it will release the lever on which the feed roller is mounted to permit such lever to be moved out of contact with the helix by spring force. A further object of the invention resides in the provision of a double-armed lever to control the operation of the feeler.

A still further object of the invention resides in the provision of a lever to cooperate with the leading end of the wire helix and which is operative with an electric circuit to operate a solenoid to thereby operate the double-armed lever.

Further objects will be apparent from the following description when considered in connection with the accompanying drawings in which:

Figure 1 is a top plan view of the machine,

Fig. 2 is a side view of a portion of the machine partly in section taken on line 22 of Fig. l in the direction of the arrows,

Fig. 3 is a cross section on an enlarged scale taken on line 3-3 of Fig. 1 in the direction of the arrows.

Fig. 4 shows a side elevation of the machine partly broken away and on a scale which is the same as Fig. 1.

Fig. 5 is a perspective view showing the details of Fig. 3 on an enlarged scale.

The machine comprises a frame to which a holding plate 2 is secured by means of holding bars 4 slidable in bosses 5 by means of hand operable screws for adjustment purposes. A further holding plate 7 is provided parallel to the holding plate 2 and in adjustable spaced relation thereto and between which sheet pack or pile is clamped, that is between the holding plates 2 and 7.

The wire helix 16 which is to be wound into the holes in the sheets is guided and moved on a mandrel 33 which latter is carried by the frame 1 and having its axis extending in the winding direction. The wire helix 16 is guided over and around this mandrel 33 as an endless screw. The winding of the helix 16 is accomplished by a driven friction wheel 34 which preferably has a roughened outer surface and therefore it is covered with a particular collar or coating. This friction wheel is forced against the wire helix on the mandrel and thereby imparts a rotary movement of the helix so that the leading end 16a of the helix 16 will move forward in the direction of the sheet pack.

The driven friction wheel 34 is mounted in a bearing 35 which is in turn mounted on the end of a lever 36. The latter is pivotally mounted around an axis indicated at 37 and specifically on an intermediate shaft 38 which 2,828,779 Patented Apr. 1, 1958 latter is driven by a motor by means of a belt pulley 41. The rotary motion from the pulley 41 to the friction wheel 34 is carried out by means of the belt pulleys 42 and 43 by the belt 44.

A rod 45 is connected to the lever 36, Fig. 2, by means of which the friction wheel 34 is forced on a part of the wire helix on the mandrel 33 against the action of a spring 46; The rod 45 may be operated by any suitable operating member, for example, a foot treadle 45. The rod 45 is provided with an abutment 47 which is adjustably mounted thereon and which abuts against the underside of the table plate 21 on which the machine is mounted when the friction wheel 34 is not pressed against the wire spiral.

The foregoing parts which have been specifically described are all included in said patent. In accordance with the present structure a part of the lever 36 has an arm 79 secured thereto which cooperates with a further lever 80. The lever 80 is pivotally mounted on a bearing block 81 for the intermediate shaft 38 on a pivot 82 to form a double-armed lever. The lever 80 carries at one end an extended abutment member 83 which is adjustable in a longitudinal direction and which with its top side will contact under the arm 79 when the friction wheel 34 has been brought into the feed position by operation of the foot treadle 45' against the action of spring 46 and is held in this position by a tension spring 84 which latter is connected at one end to the bearing block 81 and the other end to the lever 80.

A lever 85 functioning as a feeler is provided projecting into the path of the beginning part 16a of the helix 16 and this lever will be rotated on its pivot 86 by the leading end 16a of the helix when the said end presses thereon. The lever 85 is mounted on a support 88, Fig. 3, and by means of a spring 87 is forced upwardly until its limit of movement is reached as for example a stop screw 89 adjustable by a winged nut 90. As soon as the leading end 16a of the helix 16 contacts the feeler 85, the said end 16a will exert a force on the top against the action of the spring87 until the feeler 85 abuts against a projection 91. Resilient contacts 92 are suitably mounted on the feeler 85 which cooperate with corresponding contacts 93 on the support 88 when the leading end 16a presses on the feeler 85. As a result thereof an electric circuit will be closed to an electro-magnet 95 the armature 99 of which will be operated to abut against the lever 80 to rotate the latter counter-clockwise, Fig. 2, so that the arm 79 will be free to permit the spring 46 to force the friction wheel 34 off of the wire helix and the wire feed will then be arrested.

The arrangement according to said co-pending application includes two devices 96 to cut off the wire helix 16 and to bend over the ends and which are adjustable in the winding direction to accommodate and suit the length of the sheet pack for which purpose they are guided in a rectangular guide in the frame of the part 50 of'the frame. The feeler 85 is, according to this invention, also guided in the winding direction and is so adjusted that the leading end 16a of the helix 16 reaches the feeler when the first convolutions of the helix 16 reaches the cutting device 96 which is to be cut as the leading end 16a. For this purpose the support 88 of the feeler 85 is slidably and likewise adjustably mounted on a swallow-tail-shaped guide 97 which is provided on a bracket 98 on the frame 1.

Many of the parts referred to in the foregoing are clearly and fully shown and described in my said patent in which for most of the parts the same reference characters have been used.

I claim as my invention:

the back thereof, comprising a base plate, a frame mounted on the base plate, a mandrel carried by the frame by which the wire helix is guided into the perforations of a sheet pile, a bearing block mounted on the base plate, a lever pivotally mounted at one end on the bearing-block and having a friction wheel rotatably mounted on the other end, an arm secured on the lever, a double-armed lever pivotally mounted intermediate its ends on the bearing block and cooperating with the arm, means for moving said double armed lever whereby through said arm it will cause the first said lever with its friction wheel to contact and positively be held in contact with the wire helix, and means operative upon the completion of the insertion of the wire helix into the sheet pile to shift the double lever and release the lever and move the friction wheel away from the wire helix.

2. Mechanism for binding sheet piles by winding a wire helix into the pile which is perforated parallel to the back thereof, comprising a base plate, a frame mounted on the base plate, a mandrel carried by the frame by which the wire helix is guided into the perforations of a sheet pile, a bearing block mounted on the base plate, a lever pivotally mounted at one end on the bearing block and having a friction wheel rotatably mounted on the other end, an arm secured on the lever, a double-armed lever pivotally mounted intermediate its ends on the bearing block and cooperating with the arm, means for moving said double armed lever whereby through said arm it will cause the first said lever with its friction wheel to contact and positively be held in contact with the wire helix, means operative upon the completion of the insertion of the wire helix into the sheet pile to shift the double lever and release the lever and move the friction wheel away from the wire helix, said last-mentioned means including a feeler pivotally mounted and projecting into the path of movement of the wire helix to be contacted by the leading end of the helix, and electrical means operated by the feeler to cause actuation of the double-armed lever.

3. Mechanism for binding sheet piles by winding a wire helix into the pile which is perforated parallel to the back thereof, comprising a base plate, a frame mounted on the base plate, a mandrel carried by the frame by which the wire helix is guided into the perforations of a sheet pile, a bearing block mounted on the base plate, a lever pivotally mounted at one end on the bearing block and having a friction wheel rotatably mounted on the other end, an arm secured on the lever, a double-armed lever pivotally mounted intermediate its ends on the bearing block and cooperating with the arm, means for moving said double armed lever whereby through said arm it will cause the first said lever with its friction wheel to contact and positively be held in contact with the wire helix, means operative upon the completion of the insertion of the wire helix into the sheet pile to shift the double lever and release the lever and move the friction wheel away from the wire helix, said last-mentioned means including a feeler pivotally mounted and projecting into the path of movement of the wire helix to be contacted by the leading end of the helix, electrical means operated by the feeler to cause actuation of the double-armed lever, a spring on an adjustable abutment to urge the feeler upwardly against the abutment, and means in the form of a further abutment operative by the leading end of the wire helix.

4. Mechanism for binding sheet piles by winding 21 wire helix into the pile which is perforated parallel to the back thereof, comprising a base plate, a frame mounted on the base plate, a mandrel carried by the frame by which the wire helix is guided into the perforations of a sheet pile, a bearing block mounted on the base plate, a lever pivotally mounted at one end on the bearing block and having a friction wheel rotatably mounted on the other end, an arm secured on the lever, 21 double-armed lever pivotally mounted intermediate its ends on the bearing block and cooperating with the arm, means for moving (ill said double armed lever whereby through said arm it will cause the first said lever with its friction wheel to contact and positively be held in contact with the wire helix, means operative upon the completion of the insertion of the wire helix into the sheet pile to shift the. double lever and release the lever and move the friction wheel away from the wire helix, said last-mentioned means including a feeler pivotally mounted and projecting into the path of movement of the wire helix to be contacted by the leading end of the helix to cause actuation of the doublearmed lever, and contact members cooperating with an electric circuit in which an electromagnet is operable to actuate the double-armed lever.

5, Mechanism for binding sheet piles by winding a wire helix into the pile which is perforated parallel to the back thereof, comprising a base plate, a frame mounted on the base plate, a mandrel carried by the frame by which the wire helix is guided into the perforations of a sheet pile, a bearing block mounted on the base plate, a lever pivotally mounted at one end on the bearing block and having a friction wheel rotatably mounted on the other end, an arm secured on the lever, a double-armed lever pivotally mounted intermediate its ends on the bearing block and cooperating with the arm, means for moving said double armed lever whereby through said arm it will cause the first said lever with its friction wheel to contact and positively be held in contact with the wire helix, means operative upon the completion of the insertion of the wire helix into the sheet pile to shift the double lever and release the lever and move the friction wheel away from the wire helix, said last-mentioned means including a feeler pivotally mounted and projecting into the path of movement of the wire helix to be contacted by the leading end of the helix, electrical means operated by the feeler to cause actuation of the double-armed lever, and means adjustably mounting the feeler relative to the length of wire helix to be used in the sheet pile.

6. Mechanism for binding sheet piles by Winding a wire helix into the pile which is perforated parallel to the back thereof, comprising a base plate and a frame thereon, a mandrel carried by the frame by which the wire helix is guided into the perforations of a sheet pile, a bearing block mounted on the base plate, a lever pivotally mounted at one end on the bearing block and having a friction wheel rotatably mounted on the other end, an arm secured on the lever, a double-armed lever pivotally mounted intermediate its ends on the bearing block, means for moving said double armed lever whereby through said arm it will cause the first said lever with its friction wheel to contact and positively be held in contact with the wire helix, a feeler pivotally mounted on the frame and projecting into the path of movement of the helix, an electric circuit and electrical devices in the circuit including an electromagnet to actuate the double-armed,

lever and a switch on the tfeeler in circuit with the magnet operable when the leading end of the helix reaches and contacts the feeler, and a spring connected to the lever to rotate the lever to move the friction wheel out of contact with the helix to thereby stop the further feed of the wire helix.

References Cited in the file of this patent UNITED STATES PATENTS Berberich Jan. '10, 1956 

